Create Multi Page App.user.prompt

# Create Multi-Page Streamlit Application

**Agent:** Streamlit UI Development Agent  
**Category:** UI Development  
**Complexity:** Intermediate  
**Duration:** 1-2 hours

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## Purpose

Structure a Streamlit application with multiple pages for complex AI systems with different functionalities (chat, documents, analytics, settings).

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## Instructions

Create multi-page Streamlit app with:

1. **Main App** (`streamlit_app.py`) - Landing page or default view
2. **Pages Directory** (`pages/`) - Individual page files
3. **Shared Components** - Reusable UI elements
4. **Navigation** - Automatic sidebar navigation

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## Expected Structure